Cheap Flights from Incheon International to Ulsan

Compare Incheon International to Ulsan flight deals

Find the cheapest month or even day of the year to fly to Ulsan

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Flight deals from Incheon International Airport to Ulsan Airport

Looking for a cheap last-minute deal or the best return flight from Incheon International Airport to Ulsan Airport? If you want to travel next month, return fares start from R 9,114. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Incheon International to Ulsan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Incheon International to Ulsan flights are currently cheapest in May.

Incheon International to Ulsan: Alternative routes

Compare routes from Incheon International to Ulsan below. You may find an airport to fly into that's cheaper, faster, or easier than Ulsan.

Seoul to Ulsan: Flight information

The things to know before you go.
Cheapest flight foundR 3,425
Cheapest month to flyMay

Finding cheap flights from Incheon International to Ulsan: Frequently asked questions

The best price we found for a return flight from Incheon International to Ulsan is R 8,867. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Incheon International to Ulsan. But we found flights with one or more stops from R 8,867.
As of March 2026, there are no flights flying from Incheon International to Ulsan.
The cheapest month to fly from Incheon International to Ulsan is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Incheon International Airport to Ulsan Airport on Wednesday, 6 May 2026.
No airlines currently offer direct flights between Incheon International Airport and Ulsan Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ulsan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ulsan is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, T'way Air offers the cheapest flight tickets to Ulsan.

Flying from Incheon International Airport (ICN) to Ulsan Airport (USN): what you need to know

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your ICN to USN flight.

  • Flying during a peak time such as July? Public holidays and other popular periods can mean longer lines at check-in and security. Play things extra safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.

How to find the cheapest flights from Incheon International Airport (ICN) to Ulsan Airport (USN)

  • Currently, R 3,425 is the cheapest price we've found for a one-way Incheon International Airport to Ulsan Airport flight. The best price for a return ticket is R 8,867. Remember that fares could change due to availability when booking.

  • It's a good idea to book in advance if you want to get cheap tickets from ICN to USN. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.

  • If you're willing to be flexible with your travel dates, use the 'Whole month' search function. It'll give you the lowest price in each month when searching for your flight from Incheon International Airport to Ulsan Airport.

  • Save time looking for cheap flights from ICN to USN by creating a Price Alert. You'll receive an email or notification through the app when a new discounted fare appears.

  • Select your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Incheon International Airport to Ulsan Airport.

Handy information about Incheon International Airport (ICN)

  • Of the departures from Incheon International Airport, 54.5% land on schedule at their destination.

  • The journey from central Seoul to Incheon International Airport is about 48 kilometres. Look up travel apps like Google Maps for the fastest way to get there, whether you prefer to drive or use public transport.

  • You can expect a trip time of roughly 1 hour 45 minutes on public transport.

  • Searching for a convenient hotel close to ICN? If you've booked an early flight from Incheon International Airport to Ulsan Airport, these stays will have you moments from check-in:

Arriving at Ulsan Airport (USN)

  • Consider booking a hotel near USN if you have a late Incheon International Airport to Ulsan Airport flight. Select one of these options and avoid the hassle of a long transfer:

  • Line up an Ulsan Airport rental car from top providers like Lotte Rent A Car or Hertz. With your own wheels, you can venture beyond Ulsan and explore places that don't always get the spotlight.

  • To get the best deal, reserve your ride from Ulsan Airport at least a couple of weeks in advance. Rates typically rise closer to your travel date.

Getting from Ulsan Airport (USN) to central Ulsan

  • Ulsan Airport to central Ulsan is roughly 11 kilometres. Journey times vary depending on traffic and the time of day, so checking a navigation app for real-time information is always a smart move.

  • If you're taking public transport, expect a journey time of around 1 hour 35 minutes.

When to fly to Ulsan Airport (USN)

  • It's time to plan your travel dates for your flight from Incheon International Airport to Ulsan Airport. April is the busiest month to visit Ulsan. If you like a more low-key vibe, go in April.

  • Before locking in your flight from Incheon International Airport to Ulsan Airport, consider the kind of weather you enjoy. August is the warmest month in Ulsan, with temperatures ranging from 20ºC (68ºF) to 31ºC (88ºF).

  • January has average temperatures of between -5ºC (23ºF) and 8ºC (46ºF). Search for cheap tickets from ICN to USN around that time if you'd rather travel in cooler conditions.

Explore more of South Korea

  • You've done Ulsan, now it's time to discover other corners of South Korea. Journey about 306 kilometres north-west to Seoul to tick off its top sights. From Gyeongbokgung Palace to Bukchon Hanok Village and N Seoul Tower, your itinerary will be busy.

  • Busan is another well-known destination in South Korea and is around 40 kilometres south of Ulsan. No journey is complete without dropping by Haeundae Beach, Gamcheon Culture Village and Beomeosa Temple.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.